update browser.test_small_js_flags size

Author: dschuff

test/test_browser.py

@@ -4207,7 +4207,7 @@ def test_small_js_flags(self):
     print('size:', size)
     # Note that this size includes test harness additions (for reporting the result, etc.).
     if not self.is_wasm64() and not self.is_2gb():
-      self.assertLess(abs(size - 4477), 100)
+      self.assertLess(abs(size - 3377), 100)
 
   # Tests that it is possible to initialize and render WebGL content in a
   # pthread by using OffscreenCanvas.